He could not stay where he was, that was certain, so he resolved to make the attempt.
He took a long run through the first cave and the short corridor; then, exerting all his strength, he launched himself over the black gulf of the second cave. Swiftly he flew and, although his heart stood still with fear, only a few seconds elapsed before his feet touched the ledge of the opposite passageway and he knew he had safely accomplished the wonderful feat.
Only pausing to draw one long breath of relief, Inga quickly traversed the crooked corridor that led to the last cavern of the three. But when he came in sight of it he paused abruptly, his eyes nearly blinded by a glare of strong light which burst upon them. Covering his face with his hands, Inga retreated behind a projecting corner of rock and by gradually getting his eyes used to the light he was finally able to gaze without blinking upon the strange glare that had so quickly changed the condition of the cavern. When he had passed through this vault it had been entirely empty. Now the flat floor of rock was covered everywhere with a bed of glowing coals, which shot up little tongues of red and white flames. Indeed, the entire cave was one monster furnace and the heat that came from it was fearful.
Inga's heart sank within him as he realized the terrible obstacle placed by the cunning Nome King between him and the safety of the other caverns. There was no turning back, for it would be impossible for him again to leap over the gulf of the second cave, the corridor at this side being so crooked that he could get no run before he jumped. Neither could he leap over the glowing coals of the cavern that faced him, for it was much larger than the middle cavern. In this dilemma he feared his great strength would avail him nothing and he bitterly reproached himself for parting with the Pink Pearl, which would have preserved him from injury.
However, it was not in the nature of Prince Inga to despair for long, his past adventures having taught him confidence and courage, sharpened his wits and given him the genius of invention. He sat down and thought earnestly on the means of escape from his danger and at last a clever idea came to his mind. This is the way to get ideas: never to let adverse circumstances discourage you, but to believe there is a way out of every difficulty, which may be found by earnest thought.
There were many points and projections of rock in the walls of the crooked corridor in which Inga stood and some of these rocks had become cracked and loosened, although still clinging to their places. The boy picked out one large piece, and, exerting all his strength, tore it away from the wall. He then carried it to the cavern and tossed it upon the burning coals, about ten feet away from the end of the passage. Then he returned for another fragment of rock, and wrenching it free from its place, he threw it ten feet beyond the first one, toward the opposite side of the cave. The boy continued this work until he had made a series of stepping-stones reaching straight across the cavern to the dark passageway beyond, which he hoped would lead him back to safety if not to liberty.
When his work had been completed, Inga did not long hesitate to take advantage of his stepping-stones, for he knew his best chance of escape lay in his crossing the bed of coals before the rocks became so heated that they would burn his feet. So he leaped to the first rock and from there began jumping from one to the other in quick succession. A withering wave of heat at once enveloped him, and for a time he feared he would suffocate before he could cross the cavern; but he held his breath, to keep the hot air from his lungs, and maintained his leaps with desperate resolve.
Then, before he realized it, his feet were pressing the cooler rocks of the passage beyond and he rolled helpless upon the floor, gasping for breath. His skin was so red that it resembled the shell of a boiled lobster, but his swift motion had prevented his being burned, and his shoes had thick soles, which saved his feet.